Question about Denon AVR-1906 Receiver

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Avr-1906 hi, I just read one of your respond and i had to ask you. I have the AVR 1906 and one day came home and will not power up. no lights or anything else. i removed the panel and both glass fuses are ok. I was hoping maybe you can tell what I should do with it. I had the unit for about 2 years and not sure if I have any warranty on it. My opinion is trash it, but I think you already know whats wrong with it... :) thanks, Here is my email if you can respond to this. ( smati000@cox.net )

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If your amp looks like it's going to work as normal (ie the front display lights up as it should etc), but then the amp goes into protection mode when the anti-thud circuit times out, then I know what's likely to be wrong.
(The red standby button light flashes quickly)

It's one of the power amplifier channels which has gone faulty.

I just found this out after having this problem with my AVR-1906.

I took the amp apart and de-soldered the suspected channel power transistors (centre channel in my case).....and hey-presto! it fired up as normal (obviously the centre channel would be out of service).

I have ordered the replacement transistors from Farnell (UK) at a miserly cost of around £2-£3 each.

Just waiting for them to arrive.

An alternative is, if you don't use all your channels, take the transistors from a known working but not needed channel and swap them over with the duff ones.

Hope thats of use!

Posted on Aug 26, 2008

  • Foxyjay
    Foxyjay Aug 26, 2008

    I have fixed the amp totally but it required more components in my case - there were several resistors & capacitors etc, also gone faulty too.

    I borrowed them all from the rear centre channel PCB (i dont use these channels for now)

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Hi all, I've had the same thing with a 1906 that I bought on e-bay.
With the promise of re-imbursal from the seller, I managed to find a local (S.Wales, UK) repair shop that fixed the amp overnight for £45.00. It was, in this case a couple of dry joints causing exactly the same symptoms.
You can get it fixed professionally for little money if you find a small repair outfit, so I'd reccommend that you don't go changing transistors around unless you can tell for sure that that is your problem.

Posted on Aug 20, 2009

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If your amp looks like it's going to work as normal (ie the front display lights up as it should etc), but then the amp goes into protection mode when the anti-thud circuit times out, then I know what's likely to be wrong.

It's one of the power amplifier channels which has gone faulty.

I just found this out after having this problem with my AVR-1906.

I took the amp apart and de-soldered the suspected channel power transistors (centre channel in my case).....and hey-presto! it fired up as normal (obviously the centre channel would be out of service).

I have ordered the replacement transistors from Farnell (UK) at a miserly cost of around £2-£3 each.

Just waiting for them to arrive.

An alternative is, if you don't use all your channels, take the transistors from a known working but not needed channel and swap them over with the duff ones.

Hope thats of use!

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